Leo Peter Lamoureux (October 1, 1916 – January 11, 1961) was a Canadian ice hockey defenceman. He played for the Montreal Canadiens in the National Hockey League from 1942 to 1947. The rest of his career, which lasted from 1936 to 1960, was spent in the minor leagues. He won the Stanley Cup twice with Montreal, in 1944 and 1946.

Lamoureux was born in Espanola, Ontario, but grew up in Kirkland Lake, Ontario. He was named a Quebec Senior Hockey League First team All-Star in 1940.^[1] Montreal called him up for the 1941–42 season, and he played in the NHL until 1947. He won the Stanley Cup twice with Montreal, in 1944 and 1946. After leaving the NHL, Lamoureux became a player/coach with the Indianapolis Chiefs. During the 1960-61 season, Lamoureux became ill and entered an Indianapolis hospital where he was diagnosed with acute hepatitis, from which he died January 11, 1961.

• Leo P. Lamoureux Memorial Trophy